How far did the New Model Army contribute to the defeat of the royalists in 1645-46?

In this essay I aim to find out how far the creation of a New Model Army contributed to the defeat of the Royalists. Firstly it is noticeable simply from the title question that there must have been other factors involved, the New Model Army being just one of them. I am aiming to find and evaluate the significance of these factors. Britain was not psychologically prepared for war, but was even less prepared militarily …

…morale. This showed itself as a reorganised fighting force, the New Model Army. At Naseby this army finally put down any hopes of a royalist victory. It was at this battle that the major Royalist army was defeated and victory was secured. It said to be 'a sure sign that the provential hand of God was with Parliament.' With the surrender of Oxford, the royalist headquarters, in 1646 the first civil war had been won.